Why is universal charging abandoned by everyone?

You used to get an extra battery when you bought a mobile phone. Mobile phones are also easy to remove and replace batteries. Now people must think so. For wearing a heavy charging treasure, they want to wear a small battery. At that time, the universal charger with rechargeable battery was popular, but later the mobile phone became an all-in-one machine, and the battery inside could not be disassembled at will, and then the universal charger disappeared from this world.

That is, the universal charger is extremely powerful when it works. Many people who have used universal chargers know that their mobile phone batteries are getting higher and higher, and the power is getting lower and lower. It used to be fully charged for two hours, but later it may only take half an hour. These problems are all caused by the high charging power of general purpose.

It is understood that the no-load voltage of the universal battery is 6~9V, and it is only 6V when it can be charged, which is particularly harmful to the internal resistance of the battery, and then some electronic components inside will expand particularly, and finally the battery will be scrapped. Another point is that the universal charger has great security risks, because the equipment inside is very simple, so when the contact voltage is strong for a long time, it will heat up and explode for a long time, and there have been many tragedies of universal charger explosion.

Therefore, considering the security in this respect, mobile phones are developing in a better direction. Now the security risks brought by mobile phone hardware are much lower, and universal charging is also based on the disappearance of mobile phones in everyone's world. It is also the elimination needed by the development of science and technology.